A blogger was hacked to death by machete-wielding attackers in Bangladesh on Tuesday, the third killing of a critic of religious extremism in the Muslim-majority nation in less than three months. Ananta Bijoy Das, a blogger who advocated secularism, was attacked by four masked assailants in the northeastern district of Sylhet on Tuesday morning, senior police official Mohammad Rahamatullah told Reuters.

Rahamatullah said Das was a 33-year-old banker.

He was also editor of science magazine “Jukti”, which means “logic”, and on the advisory board of “Mukto Mona” (Free Mind), a website propagating rationalism and opposing fundamentalism that was founded by U.S.-based blogger Avijit Roy.

Roy himself was hacked to death in February while returning home with his wife from a Dhaka book fair.